Professional roofing calculator
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INTERACTIVE DEMO

Take a roofing project from dimensions to quotation

Choose a realistic example, adjust the dimensions and see how Tectum turns geometry into quantities, costs and a clear quotation — without an account or access to real data.

01

Choose a sample project

Start with a prepared project. You can return and choose another shape at any time.

02

Configure the geometry

Enter the building dimensions here. The diagram updates as the values change.

Dynamic roof diagramupdates live

Simplified estimating diagram; not a construction drawing.

03

Choose materials and prices

Tectum uses the material, waste and prices to estimate quantities and costs.

What this demo calculates

  • ✓ Plan area and actual roof area
  • ✓ Covering including waste
  • ✓ Membrane, battens and counter-battens
  • ✓ Ridge, eave and accessories
  • ✓ Material and installation cost

Prices and usage rates are for demonstration. In the full version, each company manages its own catalogue.

04

Review the results

Results are grouped by geometry, materials and costs, following the real workflow.

The data is ready to calculate

Recalculation validates every value on the server and updates the quantities.

Actual roof area127,58 m²All slopes, including overhang
Covering with waste140,34 m²Includes the waste percentage
Indicative sheets≈ 24Estimate; the production sheet is a full feature
Estimated total50 254 MDLMaterials, accessories and installation
Roof typeGable roof
Number of slopes2
Plan area110,49 m²
Applied waste10,0%
SlopeShapePlan areaActual area
S1Rectangle55,25 m²63,79 m²
S2Rectangle55,25 m²63,79 m²
Ridge 12,00 mEaves 25,40 mHips / edges 20,09 m
MaterialCalculated requirementWaste / roundingFinal quantityUnit priceEstimated cost
Roof covering127,58 m²+10,0%140,34 m²185,00 MDL25 963 MDL
Anti-condensation membrane140,34 m²+6,9%150,00 m²18,00 MDL2 700 MDL
Batten 25×50255,17 lm+0,3%256,00 lm12,00 MDL3 072 MDL
Counter-batten 50×50255,17 lm+0,3%256,00 lm16,00 MDL4 096 MDL
Ridge sealing tape12,00 lm+66,7%20,00 lm15,00 MDL300 MDL
Eave flashing25,40 lm+2,4%26,00 lm65,00 MDL1 690 MDL
Roofing screws982,39 pcs+1,8%1 000,00 pcs0,90 MDL900 MDL
Gutter25,40 lm+6,3%27,00 lm120,00 MDL3 240 MDL
Main material25 963 MDLAccessories11 068 MDLFlashings1 690 MDLDrainage system3 240 MDLInstallation8 293 MDLESTIMATED TOTAL50 254 MDL
Would you like to save this project?

Saving, reopening and assigning a client are available in the full version.

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05

Preview the quotation

In the full version, this information can become a customized client quotation.

TECTUM DEMONSTRATION VERSION
TECTUM

Estimated quotation

Project: Compact House — gable roof

50 254 MDL
MaterialQuantityEstimated cost
Roof covering140,34 m²25 963 MDL
Anti-condensation membrane150,00 m²2 700 MDL
Batten 25×50256,00 lm3 072 MDL
Counter-batten 50×50256,00 lm4 096 MDL
Ridge sealing tape20,00 lm300 MDL
Eave flashing26,00 lm1 690 MDL
Roofing screws1 000,00 pcs900 MDL
Gutter27,00 lm3 240 MDL
Installation127,58 m²8 293 MDL

Demonstration estimate. Dimensions must be checked on site before ordering. This calculation does not replace structural design.

In the full version you can generate and customize the client quotation.

The report can include client details, company branding and a public view-only link.

Available in the full version

More than a demonstration calculator

These features exist in Tectum, but are locked in the demo to prevent access to commercial data and real projects.

Demo versus full version

FeatureDemoFull version
Sample project calculationYesYes
Changing dimensionsLimitedComplete
Roof types3 examplesAll available shapes
Materials and pricesDemo presetsYour own catalogue
Saving and project listNoYes
Document exportPreviewPDF, CSV, JSON, KPM and PNG
Clients and sharingNoClient report and view-only link
Company administrationNoYes

You have seen how Tectum works.

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